Flashlights
For those who are permanent day shifters, where is your flashlight? Do you ever think about taking it on traffic stops or calls for service? Probably not. You may reason that you'd look like an idiot carrying a flashlight in broad daylight. But there have been plenty of times when I've needed a flashlight to look in dark and uninviting places even during the day. Bad guys hide in dark places in the daytime too, so I've found it's best to have the right tool to find them at any time.
If you don't like carrying a bulky flashlight, think about buying a tactical light. Prices have come down in the last few years. Many can be bought for under $30. Their brightness and compact size make them the perfect solution for those who don't anticipate needing a flashlight very often. And finding a place for a tactical light on your duty belt is easy with the clip-style holders that are now available.
While this is by no means an exhaustive look at all the ways to configure the items on your duty belt, maybe it will make you think about why you've arranged yours the way you have. Make sure it makes the most sense for you.
Officer safety is never going to be your agency's responsibility. Making sure that you reach your retirement date is something you have to take an active role in. Yes, it is certainly important to wear your ballistic vest, practice with your firearms, and keep yourself in good physical condition. But don't forget to pay attention to the small stuff, too.